Lighting fixtures

ABSTRACT

This lighting fixture is a knockdown construction which can be finally assembled in situ. Parts are preassembled. The lamp carrying arms can be shipped wired, prior to assembly with the junction casing and are easily assembled with the junction casing in such way that the arms are locked and cannot move out of fixed position. The locking device consists of adapters fixed on the end portions of the arms. Tabs on the adapters fit into slots in the casing to lock the adapters against rotation.

United States Patent [72] Inventor Herbert Lagln .lRssePerkBeed;firsetlmk 188;,

l 1024 [21] Appl. No. 790,688 [22] Filed Jan. 13, 1969 [45] Patented Nov. 23, 1971 [54] LIGHTING FIXTURES 12 Claims, 10 'afli l fi sa W a [52] US. Cl 240/78 CF, 240/85 B, 240/85 C, 285/158, 285/189, 339/119 L, 339/220 C [51] Int. Cl. F215 1/06 [50] Field of Search 240/78, 78 CF, 85 B, 85 C; 339/1 19 L, 220 C; 285/D1G. 7, 158,189, 209, 210

[56] References Cited UNITED STATES PATENTS 194,336 8/1877 Denniston 285/210 594,526 v V 285/2l0 1,006,192 10/1911 Forbes 285/189 3,154,283 10/1964 Spinnato. 285/D1G. 7 3,369,071 2/1968 Tuisku..... 285/158 X 1,089,490 3/1914 Messick... 240/85 (B) 1,407,527 2/1922 Goldich... 240/85 X (C) 2,922,031 l/l960 Stilfel 240/78 X 3,300,635 l/l967 Ramsey 240/78 3,386,070 5/1968 Jansson et a1... 339/1 19 (X) L 3,465,282 9/1969 Berges et a1. 240/78 X Primary Examiner-Samuel S. Matthews Assistant Examiner-M. D. Harris Attorney-J. B. Felshin ABSTRACT: This lighting fixture is a knockdown construction which can be finally assembled in situ. Parts are preassembled. The lamp carrying arms can be shipped wired, prior to assembly with the junction casing and are easily assembled with the junction casing in such way that the arms are locked and cannot move out of fixed position. The locking device consists of adapters fixed on the end portions of the arms. Tabs on the adapters fit into slots in the casing to lock the adapters against rotation.

PATENTEDNUV 2 3 |97| SHEET 2 OF 2 I.\. VI'IN'I'UR. HERBERT LAGIN ATTORNEY BACKGROUND OF THE INVENTION SUMMARY OF THE INVENTION An object of this invention is to provide a lighting fixture of the character described comprising a junction casing and lamp carrying arms, which can be shipped in knockdown condition and thereafter assembled to lock the arms against movement when the fixture is thereafter fully assembled.

Another object of this invention is to provide a lighting fixture of the character described in which the arms may be wired together and to leads that are to go to a junction box in the wall or ceiling, and in which the wiring joints may be placed in the junction casing of the fixture during assembly of the arms with said casing.

Still another object of this invention is to provide in a fixture of the character described, a junction casing made of a pair of parts, providing opposed walls, and in which the arms are fixed to adapter members having end portions nonrotatably engaged in openings or slots formed in the opposed walls to lock the arms in assembled relation to said casing.

Yet another object of this invention is to provide a lighting fixture of the character described in which the members to which the arms are fixed have means to nonrotatably engage said opposed walls to prevent the arms from rotating out of predetennined positions.

A further object of this invention is to provide a lighting fixture of the character described in which axial pipes are interconnected to hold the two parts of the junction casing in closed position and to hold spinnings or other ornamental parts of the fixture in assembled condition.

Yet a further object of this invention is to provide a strong, rugged and durable lighting fixture of the character described which shall be relatively inexpensive to manufacture, economical to ship and assemble, and which shall yet be practical and efficient to a high degree in use. 7

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combination of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of invention will be indicated in the following claims.

BRIEF DESCRIPTION OF THE DRAWING In the accompanying drawing, in which are shown various illustrative embodiments of this invention,

FIG. 1 is an elevational view of a lighting fixture embodying the invention;

FIG. 2 is a cross-sectional view taken on line 2-2 of FIG. 1;

FIG. 3 is a cross-sectional view taken on line 3-3 of FIG. 2;

3A is a cross-sectional view taken on line 3A-3A of FIG. 3;

FIG. 4 is a top view showing part of the wiring;

FIG. 5 is a partial vertical view of a lighting fixture embodying the invention, but in modified form and with parts in cross section;

FIG. 6 is a partial vertical view of another modified form of the invention, with parts in cross section;

FIG. 7 is a cross-sectional view taken on line 7-7 of FIG. 6;

FIG. 8 is a cross-sectional view taken on line 8-8 of FIG. 6; and

FIG. 9 is an exploded perspective view of part of one arm and its anchoring parts.

2 DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now in detail to the drawing, 10 designates a lighting fixture embodying the invention, showing the same in fully assembled condition. The fixture 10 comprises a junction casing 11 which is comprised of a pair of similar, symmetrically disposed case sections 12. Each case section has a circular flat wall 13 from which extends an annular, cylindrical wall or flange 14. The flanges 14 have meeting circular edges 15. Said flanges are formed with a plurality of semicircular registering notches or cut outs 16 to form a plurality of circular openings 16, 16 for the purpose hereinafter appearing.

Each circular wall 13 has a central screw threaded hole 18. Each flat wall 13 is also fonned with arcuate slots 19, centrally aligned with openings 16, 16. The slots 19 are located in a common circle.

The fixture 10 comprises a plurality of lamp carrying tubular arms 21, there being one arm for each hole or opening l6, l6. Arms 21 are arranged in radial planes passing through the axis of casing 11. Each arm 21 has a tubular horizontal radial inner end portion 22 passing through one of the holes 16, 16. Said end portion 22 passes through a hole 23 in an adapter piece 24. Piece 24 may be arcuate in horizontal cross section. End portion 22 may be flanged as at 25 contacting the inner surface of piece 24, and said piece may be welded or otherwise fixed to said pipe portion 22, as at 27.

Said piece 24 has upper and lower reduced projecting portions 28 passing through theopenings or slots 19. The casing sections 12 are releasably clamped together in the manner hereinafter explained.

Contacting the top casing member 12 is a spun, decorative part 30 having an outer, lower rim 31 engaging an annular shoulder 32 on the upper case member.

Within the casing 11 is a hickey 34 having a vertical web portion 35 from which extend an upper arm 36 and a lower arm 37. Arm 36 has a screw threaded opening 360, and lower arm 37 has a screw threaded opening 37a. Screwed to opening 36a is a vertical pipe 40 passing up through member 30. Additional decorative members may be provided with central openings and fitted on pipe 40. The upper end of pipe 40 is screwed to a member 46 provided with a loop 47 at its upper end receiving a link of a chain 48 which is to be attached at its upper end to the ceiling.

A spun member 30a similar to member 30 and symmetrically disposed with respect thereto, contacts the underside of the lower case section 12. A lower axial pipe or screw 50 is screwed at its upper end to hole 37a in arm 37 of hickey 34. Another hollow decorative member 54 may be mounted on said pipe or rod 50. Screwed to the lower end of member 50 is a member 55 which contacts the lower end of member 54, thus holding the parts of fixture 10 in assembled relation. The pipe 40 may also be screwed through the central threaded hole 18 in top wall 13. The rod 50 may be screwed through the threaded hole 18 of the bottom wall 13.

Wires 60, 61 from the lamp sockets on the arms 21 are spliced or joined as at 60a, 61a shown in FIG. 4, to the wires 62, 63 which pass up through pipe 40 for connection to the leads in the usual ceiling junction box.

The wiring connections shown in FIG. 4 can be made before the casing parts 12 are attached together by members 40, 34, 50, thus permitting the arms to be compactly shipped. Upon receiving the parts of the fixture, pieces 24 may be assembled with casing members 12 and the parts can then be fully assembled by means of the hickey 34.

For shipment, pipe 40 could be screwed to wali 13 of the upper case section, 12 or the hickey 34 can also be screwed to the lower screw threaded end of pipe 40.

For assembly, the joined wiring is placed in the upper case 12, and then the lower case and the arms may be assembled with upper case and the lower end of the fixture attached and mounted in place.

In FIG. 5 there is shown a fixture a embodying a modified form of the invention. Fixture 10a is similar to fixture 10 except that each arm 70 has a horizontal internally threaded fixed part 71 screwed to a nipple 72 passing through an opening l6, l6 and fixed to a piece 24. Part 71 may carry a decoration member 75.

In FIGS. 6-9 there is shown a fixture 10b illustrating another modified form of the invention. In fixture 10b, there is provided a junction casing 80 comprising a lower case section 81 having a bottom circular flat wall 82 from which a cylindrical wall 83 extends upwardly. On top of the upper edge 84 of cylindrical wall 83 is mounted a separate flat circular top plate 85 having an annular rim flange 86 surrounding the upper end of said cylindrical wall. A spun member 87, like spun members 30a may be located below casing 80, respectively.

Top wall 85 is formed with a plurality of equiangularly spaced slots 89 arranged tangent to a common circle. Said wall 85 is also formed with radial slots 90 having parallel side edges 91. Slots 90 extend to the inner surface of wall 83 at their radially outer ends and have semicircular inner edges 93.

Lamp carrying arms 95 have inner downwardly extending tubular portions 96. Welded to opposite sides of each arm portion 96 are a pair of adapter parts 97 and 98. Part 97 has a part-cylindrical portion 97a adapted to fit on one side of arm portion 96. Extending down from the lower end of portion 97a is an arcuate tab 97b adapted to project down through an arcuate slot 100 in bottom wall 82 of easing part 81. There is one slot 100 provided for each arm. Extending from the upper end of portion 970 is a horizontal radially inwardly extending arm 97c from which a straight lug 97d projects upwardly and passes through one of the slots 89. The height of part 97a is equal to the height of cylindrical wall 83.

Part 98 has a part cylindrical portion 98a contacting and welded to an opposite side of arm portion 96. Extending down from the lower end of portion 98a is an arcuate tab 98b which passes through an arcuate slot 105 in bottom wall 82. Extending from the upper end of portion 98a is a flat horizontal lug 98c adapted to fill slot 90 at one side of arm portion 96. Lug 980 is in the plane of top wall 85 and extends to the inner surface of rim flange 86.

Plate 85 is first assembled with arms 95. Then parts 97, 98 are welded to said arm portions 96.

Part cylindrical portions 97a, 980 are spaced from one another to allow wiring 110 to pass therebetween, as shown in FIG. 6.

The rest of the fixture is assembled as in FIGS. 14. It will thus be seen that there is provided an apparatus and article in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As possible embodiments might be made of the above invention, and as various changes might be made in the embodiments above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings, is to be interpreted as illustrative only.

I claim:

1. A lighting fixture comprising a junction casing, said casing comprising two pieces, means to releasably clamp said two pieces together, a plurality of arms, said casing having first openings, said arms having end portions projecting through said first openings an into said casing, said casing being formed with second openings, adapters fixed on the projecting through end portions of said arms and provided with portions passing through said second openings in said casing, to lock said arms to said casing against rotation of said arms about the axes of said end portions of said arms.

2. The combination of claim 1, said pieces being similar and symmetrically disposed one relative to the other, and each having a flat wall and a cylindrical wall, said cylindrical walls being formed with registering notches to form first openings.

3. The combination of claim I, said second openings comprising slots and said portions of said adapters being nonrotatably received in said slots.

. The combination of claim 2, said second openings being formed in said flat walls.

5. The combination of claim 1, said arms comprising nipples, and internally threaded portions screwed to said nipples.

6. The combination of claim 1, one casing piece comprising a bottom wall from which an annular wall extends upwardly, said other piece comprising a top wall seated on said upstanding wall.

7. The combination of claim 6, said top wall being formed with said first openings.

8. The combination of claim 7, said top and bottom walls being formed with said second openings.

9. The combination of claim 1, said casing having a top wall, a bottom wall and a cylindrical wall.

10. The combination of claim 9, one piece comprising said top wall and the other piece comprising said bottom wall.

11. The combination of claim 10, said top and bottom walls being formed with said second openings.

12. The combination of claim 11, said cylindrical wall being fonned with said first openings.

* i i i l 

1. A lighting fixture comprising a junction casing, said casing comprising two pieces, means to releasably clamp said two pieces together, a plurality of arms, said casing having first openings, said arms having end portions projecting through said first openings an into said casing, said casing being formed with second openings, adaptors fixed on the projecting through end portions of said arms and provided with portions passing through said second openings in said casing, to lock said arms to said casing against rotation of said arms about the axes of said end portions of said arms.
 2. The combination of claim 1, said pieces being similar and symmetrically disposed one relative to the other, and each having a flat wall and a cylindrical wall, said cylindrical walls being formed with registering notches to form first openings.
 3. The combination of claim 1, said second openings comprising slots and said portions of said adaptors being nonrotatably received in said slots.
 4. The combination of claim 2, said second openings being formed in said flat walls.
 5. The combination of claim 1, said arms comprising nipples, and internally threaded portions screwed to said nipples.
 6. The combination of claim 1, one casing piece comprising a bottom wall from which an annular wall extends upwardly, said other piece comprising a top wall seated on said upstanding wall.
 7. The combination of claim 6, said top wall being formed with said first openings.
 8. The combination of claim 7, said top and bottom walls being formed with said second openings.
 9. The combination of claim 1, said casing having a top wall, a bottom wall and a cylindrical wall.
 10. The combination of claim 9, one piece comprising said top wall and the other piece comprising said bottom wall.
 11. The combination of claim 10, said top and bottom walls being formed with said second openings.
 12. The combination of claim 11, said cylindrical wall being formed with said first openings. 